112 years old now in 2022 - what year born?

Today, 3 December 2022 if a person is 112 years old now, what year was he born? See below:

If 112 years old, year of birth is:
1909 or 1910*

*It depends on whether he was born before or after 1 January 1910.

If now 112 years and his year of birth 1909 if he was born after 3 December 1909 until 31 december 1909 inclusively, and his year of birth is 1910 if he was born from 1 January 1910 to 3 December 1910.

Other examples:

If now 10 years, year of birth 2011 or 2012
If now 13 years, year of birth 2008 or 2009
If now 29 years, year of birth 1992 or 1993
If now 53 years, year of birth 1968 or 1969

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